The World’s Most PowerfulFree Task Manager
Engineered for deep-work focus, trade contractors, and privacy purists. A feature-loaded powerhouse that proudly rivals and outperforms subscription tools like Todoist, TickTick, and Things 3—100% free, zero ads, and client-side encrypted.
The Competitive Advantage
Why Pay $48/Year for Features We Give You Free?
Major productivity apps put basic capabilities behind paywalls. 123 To Do delivers world-leading feature depth with zero subscription traps.
Truly 100% Free
Photo attachments, reminders, recurring routines, subtask checklists, and unlimited projects are 100% free. No 14-day trials, no tier limits, and no credit card prompts.
Dual-Skin Versatility
Switch in 1 tap between a structured Task Manager (P1–P4 matrix, checklists, Kanban) and a simple Voice Notes skin with large text and hands-free speech dictation.
Zero-Knowledge E2EE
Unlike commercial clouds that store plaintext tasks on their servers, all your data is encrypted client-side with military-grade AES-256-GCM. Neither we nor cloud providers can read your notes.
10-Second Migration
Import your entire active setup from Todoist, TickTick, Google Keep, Google Tasks, or Microsoft To Do in seconds. Priorities, checklists, and projects map over seamlessly.
World-Class Feature Parity Without the Monthly Bill
Clock Face scheduling with Apple & Google Calendar (.ics) export, 3-photo attachments, 10-tier achievements, 24-hour shadow backups, and MIT Open Source auditability.
Our Philosophy
Why We Built 123 To Do
In a digital landscape dominated by venture-backed apps that lock essential productivity features behind aggressive $5/month paywalls, track your personal habits, and clutter your day with unnecessary notifications, we asked a fundamental question:
"Why can't task management be lightning-fast, packed with power features, completely private, and 100% free?"
123 To Do was engineered to eliminate productivity friction. We discarded recurring subscriptions, database setup complexity, and invasive tracking scripts to build an application grounded in core commitments:
- ✓ Pro-Grade Features Included Free: Photo attachments, subtask checklists, calendar export, and custom project boards without forced paywalls.
- ✓ 100% Client-Side Private: Encrypted on your device via AES-256-GCM before multi-device synchronization.
- ✓ Lightning Fast & Offline-First: Progressive Web App (PWA) engineering launches in milliseconds even when completely disconnected.
- ✓ 100% Open Source (MIT): Auditable, transparent, and community-driven. Verify our security on GitHub.
Field & Desk Versatility
Dual Skins & Hands-Free Voice Dictation
Whether you are at your desk planning deliverables or walking a job site in the field, 123 To Do adapts to your environment through our innovative Dual Skin Operating System:
📋 Task Manager Mode
Your structured command center featuring the high-clarity P1–P4 priority matrix (Must Do, Should Do, Could Do, On Hold), custom color-coded projects, drag-and-drop reordering, interactive clock face time scheduling, subtask checklists, and desktop Kanban columns.
🎙️ Simple Voice Notes Mode
High-contrast, large-text dictation canvas designed for builders, contractors, trade specialists, and rapid on-the-go thought capture. Tap the microphone to dictate continuously with spoken punctuation recognition ("full stop", "comma", "new line") and live voice editing commands.
💡 Both modes share the exact same underlying encrypted dataset. Switch back and forth in one tap at any time.
Privacy & Cryptography
Zero-Knowledge Security & Encrypted Sync
We believe privacy is an absolute human right. Unlike corporate cloud services that store plaintext tasks on their servers, 123 To Do encrypts all your data on your local device using AES-256-GCM client-side encryption before any synchronization occurs.
Two Flexible Encrypted Sync Options:
- 123 To Do Cloud Sync (Default): Powered by Cloudflare D1 serverless edge database with effortless 6-digit device pairing codes. Fast, reliable synchronization across phone, tablet, and computer.
- Google Drive AppData Sync: Encrypted payloads sync directly to your personal Google account's hidden AppData folder, so your data stays solely within your own Google ecosystem.
Data Freedom
Universal Migration & Zero Lock-In Guarantee
Switch away from subscription tools in seconds and maintain 100% data portability.
Universal Multi-App Importer
1-Click MigrationMigrate from existing task managers in seconds without losing your work history. Our built-in import wizard automatically parses formats, re-maps priorities (P1–P4), and reconstructs full nested subtask hierarchies.
Zero Truncation Guarantee
Infinite Text CapacityMany task tools silently cut off your task descriptions or truncate notes beyond 500 characters. 123 To Do has zero character limits on note fields.
- ✓ Store multi-page checklists, complex SOPs, and long meeting minutes.
- ✓ Full text rendering with actionable telephone numbers, email addresses, and clickable URLs.
Zero Data Lock-In Export
Open Standard JSONYour life and projects should never be held hostage by a software vendor. At any time, you can export your entire workspace dataset with 3 clicks (Settings ⚙️ ➔ Export Backup Data).
Generates clean, human-readable, schema-valid JSON that you can inspect in any text editor, archive to offline drives, or ingest into custom scripts.
24-Hour Shadow Backups
Autonomous Safety NetAccidents and unexpected device restarts happen. That's why 123 To Do includes an automated local snapshot engine. Every 24 hours, an immutable recovery checkpoint of your active and archived tasks, subtasks, notes, and photo thumbnails is recorded safely inside local browser storage. Full-resolution photo attachments are protected in IndexedDB, while tasks write synchronously on every keystroke.
Immune to silent background browser updates and device restarts. Roll back your workspace to yesterday's snapshot with a single click—no internet connection or customer support tickets required.
Reliability & PWA
Silent Updates & 100% Offline Resilience
123 To Do is engineered as a modern Progressive Web App (PWA) that installs directly onto iOS, Android, macOS, or Windows home screens with native speed and zero app store waiting cycles.
Modern service worker technology applies updates silently in the background whenever a new version is released. The service worker activates seamlessly with zero downtime, zero data loss, and zero disruptive banners.
Technology Stack
Built on Modern Open Standards
By leveraging modern browser capabilities, service workers, and serverless edge databases, 123 To Do delivers enterprise-grade performance and security while remaining lightweight, fast, and completely free.
React 19 Engine
Blazing fast, reactive rendering with zero lag across desktop and mobile displays.
Client-Side Web Crypto API
Hardware-accelerated AES-256-GCM encryption executed purely on your local device.
Cloudflare D1 Serverless Edge
Global distributed database delivering sub-500ms encrypted multi-device synchronization.
Web Speech API
Native browser speech recognition with real-time spoken punctuation and voice editing commands.
100% Open Source (MIT)
Full client-side source code is public and auditable on GitHub, guaranteeing zero backdoors and software permanence.
Ready for a Task Manager That Puts You First?
Join professionals and deep thinkers who chose world-class focus, zero subscription fees, and total data sovereignty. Opens instantly in your browser—no signup required.